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206 12 Design Methodology

Table 12.11 Function list worksheet
Function list
Module The first-level The second-level Significance Remarks
functions functions

(3) Step 3: Remarks. Enter the reflections on the functions and solutions,
including any items deemed to be specified by the designer

12.8.3 An Example of Function List

The function list for eye use protective system is shown in Appendix 6.

12.9 Extended Reading

Approaches to delivering design methodology vary in terminology and phases of
execution. The UK design council illustrates a four-stage process: discover, define,
develop, and deliver termed the “Double Diamond” (Design Council, 2005),
whereas innovation consultancy IDEO (Brown, 2008) proposes the approach
incorporating three spaces: inspiration, ideation, and implementation.

12.9.1 Double Diamond

This double diverge-converge pattern was first introduced in 2005 by the British
Design Council (Design Council UK, 2005), which called it the double diamond
design process model. The Design Council divided the design process into four
stages: “discover” and “define”—for the divergence and convergence phases of
finding the right problem, and “develop” and “deliver”—for the divergence and
convergence phases of finding the right solution.

12.9.2 Design Thinking for Educators (IDEO)

IDEO (pronounced “eye-dee-oh”) is an international design and consulting firm
founded in Palo Alto, California, in 1991. The company uses the design thinking